“Most of the letters in this volume were written by Mach to Eduard Kulke. Other correspondents include Josef Popper-Lynkeus and Paul Tausig.Additional material includes Czechoslovakian and German seminar announcements.

The identity of the original owner of the scrapbook and collector of the materials is unknown. A note in the Dibner Library’s provenance file speculates that the scrapbook was put together in 1938, but the source of that information is not given.[…]